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AS3525 Datasheet(PDF) 153 Page - ams AG |
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AS3525 Datasheet(HTML) 153 Page - ams AG |
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153 / 194 page  AS3525-A/-B C22O22 Data Sheet, Confidential © 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved. www.austriamicrosystems.com Revision 1.13 153 - 194 7.4.15.4 Parameter Table 139 Charger Parameter Symbol Parameter Notes Min Typ Max Unit BVDD<=3V, CHG_IN = 5.5V 37 68 111 mA ICHG_trick Charging Current (trickle charge) BVDD<=3V, CHG_IN = 4.0V 17 32 55 mA VCHG_trick Charger Endpoint Voltage (trickle charge) BVDD<=3V, CHG_IN = 4.4V 0.70* CHG_IN 0.72* CHG_IN 0.74* CHG_IN V ICHG (0-7) Charging Current BVDD > 3V INOM -20% INOM INOM +20% mA VCHG (0-7) Charging Voltage BVDD > 3V, end of charge is true VNOM -50mV VNOM VNOM +30mV V VON_ABS Charger On Voltage IRQ BVDD = 3V 3.1 4.0 V VON_REL Charger On Voltage IRQ CHG_IN-CHG_OUT 170 240 mV VOFF_REL Charger Off Voltage IRQ CHG_IN-CHG_OUT 40 77 mV VBATEMP_ON Battery Temp. high level (55°C) BVDD >3V 380 400 420 mV VBATEMP_OFF Battery Temp. low level (50°C) BVDD >3V 480 500 520 mV ICHG_OFF End Of Charge current level BVDD >3V 5% INOM 10% INOM 15% INOM mA IREV_OFF Reverse current shut down BVDD = 5V, CHG_IN open 160 336 420 nA BVDD=3.6V; Tamb=25ºC; unless otherwise specified 7.4.15.5 Register Description Charger Related Register Name Base Offset Description IRQ_ENRD_0 I2C audio master 0x25 Enable/disable EOC and battery over-temperature interrupt Read out charger status Table 140 Charger Register Name Base Default Charger I2C audio master 0x00 Charger Register Offset: 0x22 This register is reset at a DVDD-POR. Bit Bit Name Default Access Bit Description 7 TMPSup_off 0 R/W 0: enables 15uA supply for external 100k NTC resistor 1: disables supply 6:4 CHG_I 000 R/W set maximum charging current 111: 400 mA 110: 350 mA .. 001: 100 mA 000: 50 mA 3:1 CHG_V 000 R/W set maximum charger voltage 111: 4.25 V 110: 4.2 V .. 001: 3.95 V 000: 3.9 V 0 CHG_OFF 0 R/W 0: enables Charger 1: disables Charger |
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